The OP/TECH USA S.O.S. Strap (Black) is designed to carry a heavy-weight bag, briefcase, computer bag or luggage. It is a neoprene strap with an internal control-stretch system with bound edges. The strap attaches to the bag with metal swivel snap hooks or 1.5" (3.8cm) webbing. There is a non-skid surface that keeps the strap securely on the shoulder. The strap is adjustable from 20-52" and has a recommended load of 30 lbs. This item is made in the USA.